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The violet-red colour in the Lassaigne’s...

The violet-red colour in the Lassaigne’s test of sulphur is due to
`S^(2-) + underset("Sodium nitro prusside")([Fe(CN)_(5)(NO)]^(2+)) to (3)`

A

`FeCl_(3)`

B

`Na_(2)[Fe(CN)_(6)]`

C

`Na_(4)[Fe(CN)_(5)NOS]`

D

None of these

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AAKASH INSTITUTE-ORGANIC CHEMISTRY : SOME BASIC PRINCIPLES AND TECHNIQUES -Assignment(SECTION-A)
  1. A mixture containing urea and napthalene can be separated by

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  2. Principle of crystallization method depends on

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  3. Chloroform and aniline can be purified by

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  4. The principle involved in gas liquid chromatography (GLC) is

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  5. Steam distillation is applied for the separation of those compounds wh...

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  6. The process of differential extraction is based upon

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  7. Glycerol decomposes at its boiling point, the purification of glycerol...

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  8. The Na metal is used in "Lassaigne’s test" is due to

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  9. Which of the following compound will give blood red colour while doing...

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  10. The violet-red colour in the Lassaigne’s test of sulphur is due to ...

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  11. The function of boiling the sodium extract with concentrated nitric ac...

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  12. A mixture of acetone and methanol can be separated by

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  13. In Duma's method for determining the nitrogen content of an organic co...

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  14. 0.2 g of an organic compound on comptete combustion produces 0.18 g of...

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  15. The substance which can be used as an adsorbent in column chromatograp...

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  16. In the estimation of Duma's method 1.18 of an organic compound gave 22...

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  17. 0.5 g of an organic compound cantaining N on Kjeldahlising required 29...

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  18. 0.4 g of Organic Compound gave 0.188g of AgBr. The percentage of Br in...

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  19. Which of the following will not give the Lassaigne test for nitrogen?

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  20. For the detection of phosphorus, the organic compound after fustion wi...

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